using DocumentFormat.OpenXml.InkML;
using DynamicExpresso;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using wispro.sp.api.Services;
using wispro.sp.entity;
using wispro.sp.entity.CompareCase;
using wispro.sp.share;

namespace wispro.sp.api.Controllers
{
    [Route("api/[controller]/[action]")]
    [ApiController]
    public class CaseFileCompareController : ControllerBase
    {
        spDbContext Context;
        IFileTaskService fileTaskService;


        public CaseFileCompareController(spDbContext context, IFileTaskService _fileTaskService)
        {
            Context = context;
            fileTaskService = _fileTaskService;

        }
        [Authorize]
        public ApiSaveResponse Save(CaseInfo caseInfo)
        {
            ApiSaveResponse ret = new ApiSaveResponse();
            ret.Success = true;

            using (Context.Database.BeginTransaction())
            {
                try
                {
                    #region 客户处理
                    if (caseInfo.Customer != null && !string.IsNullOrEmpty(caseInfo.Customer.Name))
                    {
                        var temCustomer = Context.Customers.Where<Customer>(c => c.Name == caseInfo.Customer.Name).FirstOrDefault();

                        if (temCustomer == null)
                        {
                            temCustomer = new Customer() { Name = caseInfo.Customer.Name };
                            //item.Customer.Id = 0;

                            Context.Customers.Add(temCustomer);
                            Context.SaveChanges();
                            caseInfo.Customer = temCustomer;
                            //item.CustomerId = item.Customer.Id;
                        }
                        else
                        {
                            caseInfo.Customer = temCustomer;
                        }

                        caseInfo.CustomerId = caseInfo.Customer.Id;
                        caseInfo.Customer = null;
                    }
                    else
                    {
                        caseInfo.Customer = null;
                    }
                    #endregion

                    #region 审核人
                    if (caseInfo.Reviewer != null && !string.IsNullOrEmpty(caseInfo.Reviewer.Name))
                    {
                        var temReviewer = Context.Staffs.Where<Staff>(c => c.Name == caseInfo.Reviewer.Name).FirstOrDefault();

                        if (temReviewer == null)
                        {
                            temReviewer = new Staff() { Name = caseInfo.Reviewer.Name };
                            //item.Customer.Id = 0;

                            Context.Staffs.Add(temReviewer);
                            Context.SaveChanges();
                            caseInfo.Reviewer = temReviewer;
                            //item.CustomerId = item.Customer.Id;
                        }
                        else
                        {
                            caseInfo.Reviewer = temReviewer;
                        }

                        caseInfo.ReviewerId = caseInfo.Reviewer.Id;
                        caseInfo.Reviewer = null;
                    }
                    else
                    {
                        caseInfo.Reviewer = null;
                    }
                    #endregion

                    if (caseInfo.DRRAbstract != null) {
                        Context.CaseCompareResults.Add(caseInfo.DRRAbstract);
                        Context.SaveChanges();
                        caseInfo.DRRAbstractId = caseInfo.DRRAbstract.Id;
                        caseInfo.DRRAbstract = null;
                    }
                    if (caseInfo.DRRCalim != null)
                    {
                        Context.CaseCompareResults.Add(caseInfo.DRRCalim);
                        Context.SaveChanges();
                        caseInfo.DRRCalimId = caseInfo.DRRCalim.Id;
                        caseInfo.DRRCalim = null;
                    }
                    if (caseInfo.DRRFulltext != null)
                    {
                        Context.CaseCompareResults.Add(caseInfo.DRRFulltext);
                        Context.SaveChanges();
                        caseInfo.DRRFulltextId = caseInfo.DRRFulltext.Id;
                        caseInfo.DRRFulltext = null;
                    }
                    if (caseInfo.DRRAll != null)
                    {
                        Context.CaseCompareResults.Add(caseInfo.DRRAll);
                        Context.SaveChanges();
                        caseInfo.DRRAllId = caseInfo.DRRAll.Id;
                        caseInfo.DRRAll = null;

                    }
                    if (caseInfo.RFRAbstract != null)
                    {
                        Context.CaseCompareResults.Add(caseInfo.RFRAbstract);
                        Context.SaveChanges();
                        caseInfo.RFRAbstractId = caseInfo.RFRAbstract.Id;
                        caseInfo.RFRAbstract = null;
                    }
                    if (caseInfo.RFRCalim != null)
                    {
                        Context.CaseCompareResults.Add(caseInfo.RFRCalim);
                        Context.SaveChanges();
                        caseInfo.RFRCalimId = caseInfo.RFRCalim.Id;
                        caseInfo.RFRCalim = null;
                    }
                    if (caseInfo.RFRFulltext != null)
                    {
                        Context.CaseCompareResults.Add(caseInfo.RFRFulltext);
                        Context.SaveChanges();
                        caseInfo.RFRFulltextId = caseInfo.RFRFulltext.Id;
                        caseInfo.RFRFulltext = null;
                    }
                    if (caseInfo.RFRAll != null)
                    {
                        Context.CaseCompareResults.Add(caseInfo.RFRAll);
                        Context.SaveChanges();
                        caseInfo.RFRAllId = caseInfo.RFRAll.Id;
                        caseInfo.RFRAll = null;
                    }

                    Context.CaseInfos.Add(caseInfo);
                    Context.SaveChanges();
                    Context.Database.CommitTransaction();

                }
                catch (Exception ex)
                {
                    ret.Success = false;
                    ret.ErrorMessage = ex.Message;
                    Context.Database.RollbackTransaction();
                }
               
            }

            return ret;
        }

        public ListApiResponse<CaseInfo> QueryFilter(QueryFilter queryFilter)
        {
            ListApiResponse<CaseInfo> ret = new ListApiResponse<CaseInfo>();

            IQueryable<CaseInfo> response = NewMethod(queryFilter);

            int totals = response.Count();

            if (totals > 0 && totals < (queryFilter.PageIndex) * queryFilter.PageSize)
            {
                response = response
                     .Include(pi => pi.DRRCalim)
                    .Include(pi => pi.DRRAbstract)
                    .Include(pi => pi.DRRFulltext)
                    .Include(pi => pi.DRRAll)
                    .Include(pi => pi.RFRCalim)
                    .Include(pi => pi.RFRAbstract)
                    .Include(pi => pi.RFRFulltext)
                    .Include(pi => pi.RFRAll)
                    .Include(pi => pi.Customer)
                    .Include(pi => pi.Reviewer)
                    .OrderConditions<CaseInfo>(queryFilter.Sorts)
                    .Skip((queryFilter.PageIndex - 1) * queryFilter.PageSize)
                    .Take(totals - (queryFilter.PageIndex - 1) * queryFilter.PageSize);
                //.Pager<PerformanceItem>(1, queryFilter.PageSize, out totals);
            }
            else
            {
                response = response
                    .Include(pi => pi.DRRCalim)
                    .Include(pi => pi.DRRAbstract)
                    .Include(pi => pi.DRRFulltext)
                    .Include(pi=>pi.DRRAll)
                    .Include(pi => pi.RFRCalim)
                    .Include(pi => pi.RFRAbstract)
                    .Include(pi => pi.RFRFulltext)
                    .Include(pi => pi.RFRAll)
                    .Include(pi => pi.Customer)
                    .Include(pi => pi.Reviewer)
                    .OrderConditions<CaseInfo>(queryFilter.Sorts)
                    .Skip((queryFilter.PageIndex - 1) * queryFilter.PageSize)
                    .Take(queryFilter.PageSize);
            }
            ret.TotalCount = totals;

            var retList = response.ToList<CaseInfo>();


            #region 将某些属性设为null，避免循环取值造成返回json过大
            foreach (CaseInfo item in retList)
            {
                item.Customer.PerformanceItems = null;
                item.Customer.ResponseMan = null;
                item.Reviewer.Customers = null;
                item.Reviewer.ExternalHandlerItems = null;
                item.Reviewer.ItemStaffs = null;
                item.Reviewer.AllocationRatios = null;
                item.Reviewer.ReviewerItems = null;
            }
            #endregion

            ret.Results = retList.ToList();

            return ret;
        }

        private string GetExpress(IList<FieldCondition> conditions)
        {
            string str = "";

            foreach (var c in conditions)
            {
                if (string.IsNullOrEmpty(str))
                {
                    str = c.ToExpressString("s");
                }
                else
                {
                    if (c.LogicOperate == LogicEnum.And)
                    {
                        str = $"({str}) && {c.ToExpressString("s")}";
                    }
                    else
                    {
                        str = $"({str}) || {c.ToExpressString("s")}";
                    }
                }
            }

            return str;
        }


        private IQueryable<CaseInfo> NewMethod(QueryFilter queryFilter)
        {
            string strExpress = "";
            
            if (queryFilter.ConditionTree != null)
            {
                strExpress = GetExpress(queryFilter.ConditionTree);
            }

            var interpreter = new Interpreter();
            if (string.IsNullOrEmpty(strExpress))
            {
                return new spDbContext().CaseInfos.Where<CaseInfo>(p=>(p.Id>0));
            }
            else
            {
                Expression<Func<CaseInfo, bool>> dynamicWhere = interpreter.ParseAsExpression<Func<CaseInfo, bool>>(strExpress, "s");

                IQueryable<CaseInfo> response = new spDbContext().CaseInfos.Where<CaseInfo>(dynamicWhere);
                return response;
            }

        }

    }
}